How do you check if your design patterns meet functional and non-functional requirements?

Definir claramente seus requisitos é crucial porque: Alinha Expectativas: Garante que todos entendam o que o sistema deve fazer. Guia o Desenvolvimento: Ajuda a equipe a focar nos objetivos certos. Facilita Testes: Permite verificar se o sistema atende aos requisitos. Reduz Riscos: Minimiza mal-entendidos e retrabalho, economizando tempo e recursos.

Specify the specific functions (functional) and the way the system should operate (non-functional). Document this using user stories, use cases, and other relevant methods.

Defining requirements is indeed the cornerstone of successful design and development. In our team, we place a strong emphasis on understanding both functional and non-functional requirements early on. This approach ensures our architectural solutions not only meet client expectations but also deliver on performance, security, and usability. Clear documentation and continuous validation are key to achieving excellence.

Unlike functional requirements, non-functional ones are often not explicitly defined; they are carefully considered after much deliberation. After compiling a complete list of requirements, both functional and non-functional, analyze how each design pattern addresses a particular requirement. Conduct thorough performance testing and user testing, and gather feedback through code reviews and user evaluations. Regularly revisit both functional and non-functional requirements throughout the development lifecycle, and thoroughly document why each design pattern was selected and which functional and non-functional requirements it addresses.

A simple approach is to map the standards and patterns to business capabilities. Each solution can then be evaluated by determining the capabilities of a system and its associated patterns. The NFR's will be linked to common enterprise capabilities for Digital ops, cyber sec etc.. that will be determined based on business criticality, data classification etc..

Selecting the right design patterns is crucial for aligning architectural solutions with project requirements. In our team, carefully evaluate design patterns to ensure they fit our clients' needs, considering the context and potential trade-offs. This thoughtful approach allows us to deliver high-performance and reliable solutions that stand the test of time.

In a large-scale web application project, we targeted the satisfaction of functional and non-functional requirements through consistent application of design patterns. We applied the Singleton pattern for database connections and the Observer pattern for handling different events. Our coding was up to standard, following the best practice and naming conventions to ensure maintainability and readability. We also documented the purpose of each pattern in the code and its usage, in addition to reusing frameworks where possible, like Spring. Debugging the system and working on performance reviews was made straightforward with regular application of patterns, and we were able to reach the reliability and scalability goals for this system.

Consistency is key when implementing design patterns. In our team, we ensure that our design approach is uniform across all projects, adhering to best practices and guidelines.